Light source module and projection apparatus

US20130176540A1Active Publication Date: 2013-07-11CORETRONIC
6 Cites 36 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
CORETRONIC
Publication Date
2013-07-11

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Abstract

A light source module includes a light-emitting device, a wavelength conversion device and a polarization and color separation unit. The light-emitting device provides an excitation beam including a first portion beam having a first polarization direction. The wavelength conversion device includes a first wavelength conversion area and a polarization conversion area. When the first portion beam irradiates the first wavelength conversion area, the first portion beam is converted into a first color beam. When the first portion beam irradiates the polarization conversion area, the first polarization direction of the first portion beam is converted to a second polarization direction. The polarization and color separation unit is disposed between the wavelength conversion device and the light-emitting device, and transmits the first portion beam with the first polarization direction, and reflects the first portion beam with the second polarization direction and the first color beam to the same direction.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the priority benefit of China application serial no. 201210007006.2, filed on Jan. 11, 2012. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The invention relates to an optical device. Particularly, the invention relates to a light source module and a projection apparatus.

[0004] 2. Description of Related Art

[0005] With development of display technology, in a projection apparatus, besides that an ultra high pressure lamp (UHP lamp) suitable for emitting a white light can be used together with a color wheel to sequentially generate a red light, a green light and a blue light, so that the projection apparatus can provide color images. In recent years, the projection apparatus using light-emitting diodes (LEDs) as light sources is further developed. However, since the ligh...

Claims

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